Phytochemical Screening and Antioxidant Activities of Purple and White Skinned Sweet Potato (Ipomea Batatas)

Abstract

The purpose of this study was to isolate the phytoconstituents of purple and white skinned sweet potato (Ipomea Batatas).The extracts from the four different samples of Ipomea batatas exhibit saponins, steroids, flavonoids. Alkaloids and cardiac glycosides. The extracts from the sweet potato samples in tannic acid equivalent showed higher activities at 30.55356 mg/g for white cooked sample, 30.38581 mg/g for purple cooked, 19.6022 mg/g for purple raw and 12.14953 mg/g for white raw. It could be concluded that the food sample contain an array of essential nutrients as well as phytochemicals which make them possess antioxidant function as well as other bioactivity.